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Finding the Fourth Proportional to 9,510, 13,123.80 and 5,319.06

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Solution

The fourth proportional to 9,510, 13,123.80 and 5,319.06 is: 7,340.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,510 : 13,123.80 = 5,319.06 : x
  2. Step 2: Convert to fraction form
    9,510/13,123.80 = 5,319.06/x
  3. Step 3: Cross multiply
    9,510x = 13,123.80 × 5,319.06
  4. Step 4: Simplify right side
    9,510x = 69,806,279.63
  5. Step 5: Solve for x
    x = 69,806,279.63/9,510
  6. Step 6: Final answer
    x = 7,340.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.